This is us

We are Gröger & Obst

We specialised in the development and manufacture of instruments for gas and water analysis more than 35 years ago, and since then we have ensured that more and more new areas of application benefit from the possibilities of our TOC analysers. Today, we are a leading provider of state-of-the-art measurement systems, services and solutions in the field of gas and water analytics.

Our location in picturesque Upper Bavaria shows us every day how important our contribution is to maintaining clean air and water. That’s why we give our best every day and put our whole heart into what we do.

Gruppenfoto G&O-Mitarbeiter
Our team

The qualitymeasure

Our team is small, powerful, fast and competent. And above all: our hearts beat in unison for the technical possibilities of gas and water analysis. With decades of experience and concentrated expertise in the fields of mechanics, technology and electrical engineering, the team around company founder Helmut Gröger will be happy to assist you in all matters. Would you like to learn more about us?

Then the best thing would be for you to get to know us in person!

Managing Partner
Sabrina Heimgärtner-Kaisler
Elektromechaniker Meister
John Schille
Master electrician
John Schille
Founder & Managing Director
Helmut Gröger
Portrait Patrick Kaisler
Technician / Customer Service / Workshop Manager
Patrick Kaisler
Produktionshelfer Werner Lechel
Production helper
Patrick Kaisler
In the middle of beautiful Wolfratshausen

Our office & surroundings

Working in the most beautiful postcard idyll of Upper Bavaria. A real treat for us! Surrounded by Germany’s highest mountains, the picturesque courses of the Loisach and Isar rivers and the nearby, vibrant city of Munich, we are at home. A holiday region rich in clear lakes and fresh mountain air that shows us every day what a great asset clean air and water are.

Our best ideas are born here in Wolfratshausen and from here we have been supplying companies throughout Germany and beyond with our measurement technology for more than 35 years.


Alte Holzbrücke in Wolfratshausen in richtung
Our course

Always one step ahead

We approach our daily work with this in mind.

We develop our solutions ourselves and implement them directly at our company headquarters in Upper Bavaria. As an owner-managed company, it is a matter of honour for us that all devices bearing our name must perform reliably and last a long time.

A course that has helped us to establish ourselves as a force to be reckoned with in the water and gas analysis market since our foundation in 1986.